Mana Games

I can't host a game in a long time.... I don't have a router. and when I join in other's room ,after the match i can host the game and play with others. but after a few minites the connection test means the room is not reachable ... how can i host a game .... i am very sad because i am happy to host a game with my friend.....
please help me thank you please help me thank you please help me thank you please help me thank you please help me thank you